Rosids

The Rosids clade are a group of angiosperms. They are one of two major groups within the Eudikotyledonen. In the scheme of the Angiosperm Phylogeny Group they are not a separate taxon and proportion to the scope about the former subclass Rose something similar.

Features

The Rosids clade are essentially characterized by molecular genetic features, there are few morphological features in common. Their flowers usually have a double perianth of calyx and corolla, the petals are often fused. Furthermore, two stamen circles are present, or the androecium is secondary inward ( centripetal ) or outward ( centrifugal) increased. The gynoecium is often septate. The ovules are crassinucellat, possess two integuments and the endosperm is formed in the nucleus. Are often located Diskusnektarien At the base of the flowers.

System

The Rosids clade are one of two major groups within the Kerneudikotyledonen. They consist of two groups of order and basally a standing order. A cladogram is as follows:

Euro Siden I

Euro Siden II

Vitales

Rosids clade

  • Vitales

Euro Siden I

The euro Siden I are in the English-language literature as Fabiden ( type order Fabales ). They are defined only by molecular genetic characteristics, morphological synapomorphies are not defined until now.

The euro Siden I include the following orders:

The cladogram of the euro Siden I looks like this:

Cucurbitales

Fagales

Rosales

Fabales

Celastrales

Oxalidales

Malpighiales

Zygophyllales

Euro Siden II

The euro Siden II in the English-language literature as Malviden ( type order Malvales ). The group is characterized by a gynoecium with simple pistils. Its seeds usually have only very little endosperm.

The euro Siden II include the following orders:

The cladogram of the euro Siden II is as follows:

Malvales

Brassicales

Huerteales

Sapindales

Picramniales

Crossosomatales

Myrtales

Geraniales

Eduard Strasburger
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